In gear drive, what is the fit between the gear and its mating shaft?Gear and shaft coordination is clearance fit, then in the transmission process will not appear shaft and gear gap, and the loss of shaft diameter?
H7/h6 or H8/h7 coordination, depending on the specific circumstances"Then, will there be a gap between the shaft and the gear during transmission, and the axle diameter will be lost because there is no relative rotation between the gear and the shaft."
Assembly is not easy (especially when the axial size is large). There are also gear and shaft mating using H7/k6, which is used in high-power, high torque transmission, is to prevent vibration caused by large and loose
There is no wear problem; the gear hole and the shaft surface have the shape error, it seems the clearance fit, but because the clearance is very small
